diff --git a/frontend/src/__tests__/components/BookingList.test.tsx b/frontend/src/__tests__/components/BookingList.test.tsx
index ffd75af6..921cbce8 100644
--- a/frontend/src/__tests__/components/BookingList.test.tsx
+++ b/frontend/src/__tests__/components/BookingList.test.tsx
@@ -209,10 +209,10 @@ describe("BookingList", () => {
       minute: "2-digit",
       hour12: true,
     })}`;
-    const item = screen.getByText(expected).closest(".bookinglist-item");
+    const item = screen.getByText(expected).closest(".booking-list-item");
     expect(item).toBeTruthy();
     if (item) {
-      (item as globalThis.HTMLElement).click();
+      (item as HTMLElement).click();
       expect(onSelect).toHaveBeenCalledWith(expect.objectContaining({ id: 2 }));
     }
   });
diff --git a/frontend/src/__tests__/components/RoomList.test.tsx b/frontend/src/__tests__/components/RoomList.test.tsx
index 90c67ee5..eb855b8a 100644
--- a/frontend/src/__tests__/components/RoomList.test.tsx
+++ b/frontend/src/__tests__/components/RoomList.test.tsx
@@ -28,8 +28,8 @@ describe("RoomList", () => {
       "aria-label",
       expect.stringContaining("Beta Room")
     );
-    // Check for font weight style (bold)
-    expect(selected.innerHTML).toMatch(/font-weight: 700/);
+    // Check for selected class (bold/highlighted)
+    expect(selected.className).toMatch(/room-list-item-selected/);
   });
 
   it("renders secondary text for room details", () => {
diff --git a/frontend/src/__tests__/helpers/booking.test.ts b/frontend/src/__tests__/helpers/booking.test.ts
index 27d2da7d..7c48ceb9 100644
--- a/frontend/src/__tests__/helpers/booking.test.ts
+++ b/frontend/src/__tests__/helpers/booking.test.ts
@@ -14,7 +14,7 @@ describe("booking helpers", () => {
         start_time: rollingIso(1),
         end_time: rollingIso(2),
       })
-    ).toBe(42);
+    ).toBe("42");
     expect(getEditBookingRoomId(null)).toBe("");
   });